CN103224369A - Anti-radiation concrete produced from slag aggregate, and production method thereof - Google Patents
Anti-radiation concrete produced from slag aggregate, and production method thereof Download PDFInfo
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- CN103224369A CN103224369A CN2013101217764A CN201310121776A CN103224369A CN 103224369 A CN103224369 A CN 103224369A CN 2013101217764 A CN2013101217764 A CN 2013101217764A CN 201310121776 A CN201310121776 A CN 201310121776A CN 103224369 A CN103224369 A CN 103224369A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to anti-radiation concrete produced from slag aggregate, and a production method thereof so as to effectively consume and utilize mineral waste, and improve an anti-radiation performance and durability of concrete. The anti-radiation concrete produced from slag aggregate comprises the following raw materials, by weight, 140-190 parts of water, 350-630 parts of a cementing material, 750-850 parts of a fine aggregate, 1000-1500 parts of a coarse aggregate, 0.35-1.9 parts of a tackifier, 2.1-7.5 parts of a water reducing agent, and 30-70 parts of fibers, wherein the cementing material comprises cement and a mineral admixture, the mineral admixture comprises silicon ash and fly ash, the cementing material comprises 300-500 parts by weight of the cement, 20-60 parts by weight of the silicon ash and 30-70 parts by weight of the fly ash, the coarse aggregate is a high titanium heavy slag coarse aggregate, the fine aggregate comprises high titanium heavy slag sand and lead powder according to a mass ratio of 1:0.2-3.0, the tackifier is methyl cellulose ether, and the fibers are one or a plurality of material selected from polypropylene fibers, steel fibers and lead fibers.
Description
Technical field
The present invention relates to concrete and preparation method thereof, belong to concrete field.
Background technology
Climbing the steel high-titanium dry slag and be a kind of that the melted gangue that produces when blast furnace is smelted vanadium titano-magnetite naturally cooling or water-cooled in air form is main stone material by mineral such as titanaugite, uhligites.The chemical ingredients of climbing the steel high-titanium dry slag is mainly CaO, SiO
2, TiO
2, MgO, Al
2O
3, account for total amount more than 95%, TiO
2Content is greater than 20%; make it on performance, very big difference be arranged with ordinary slag; be not suitable as extra material and the concrete mineral admixture of producing cement; application in concrete and building mortar is less; limited the recycling of high-titanium dry slag to a great extent; the high-titanium dry slag of climbing the existing fifty-five million ton of steel company at present is not utilized effectively; become restriction and climbed " bottleneck " that steel is produced, pressed for the efficient technique of rainwater utilization that the mass-producing of steel high-titanium dry slag, resource utilization are climbed in research and development.
In the radiation shield concrete design, the natural crystal that some apparent densities are bigger: barite, serpentine, rhombohedral iron ore, magnetite etc., rely on its good ray shield performance, generally be used as concrete coarse-fine aggregate by Chinese scholars.These natural crystals rely on it to have bigger ordination number and higher apparent density, can effectively stop ray penetrating in concrete.Above-mentioned natural crystal belongs to Nonrenewable resources, on the angle of Sustainable development, should seek its substitute with the preparation radiation shield concrete.
And the above-mentioned natural crystal apparent density (3.0～5.0 * 10 of gathering materials
3Kg/m
3) apparent density (2.6～3.0 * 10 of all more basic phase sand-cement slurry
3Kg/m
3) bigger than normal.Since the difference of these two kinds of component apparent densities, the then stronger sinking trend of existence of gathering materials that apparent density is higher.In process is vibrated in concrete placement, if the control of the viscosity of cement slurry is bad, will cause cement slurry and the serious layering of gathering materials, this also is a technical barrier that is prevalent in design of radiation shield concrete proportioning and the construction.The homogeneity of radiation shield concrete is bad, to following problem appear: first, radiation shield concrete is being born the substantial responsibility that shields ray, if homogeneity of concrete is bad, the layering of gathering materials is comparatively serious, concrete cracking tendency is increased, and the aggregate skewness will cause concrete defectives such as more air pocket, micropore, crack, interface to occur, thereby make the anti-radiation of radiation shield concrete can reach the shield effectiveness of expection; The second, concrete homogeneity not good general causes its structure after the concrete hardening to present inhomogeneous on microcosmic and the macroscopic view, not only reduces mechanical properties of concrete, also brings detrimentally affect to durability of concrete.
Climb and contain higher heavy metallic mineral TiO in the steel high-titanium dry slag
2Composition, also the same with above-mentioned natural crystal have higher ordination number and an apparent density, therefore utilize the radiation shield concrete of climbing the preparation of steel high-titanium dry slag also can have comparatively good ray shield performance, utilize and climb the steel high-titanium dry slag and prepare radiation shield concrete and can effectively save natural crystal.Climb the apparent density (2.5～3.2 * 10 of steel high-titanium dry slag
3Kg/m
3) with the apparent density (2.6～3.0 * 10 of basic sand-cement slurry mutually
3Kg/m
3) close, utilize its preparation radiation shield concrete can effectively solve the bad problem of above-mentioned homogeneity.
Nuclear energy will be made major contribution as a kind of maturation, cleaning, safety and competitive technology to human kind sustainable development in 21 century and future.In the fast development that nuclear power source is utilized, be used for the X that the shielded nucleus reactor brings, the radiation shield concrete of rays such as γ also needs further to study its development, optimizes its performance.The present invention uses with high-titanium dry slag and is the raw material preparing radiation shield concrete, climbs the reluctant problem of steel high-titanium dry slag for solution and has proposed effective recycling approach.
Summary of the invention
The technical problem to be solved in the present invention provides radiation shield concrete and the production method thereof that a kind of slag gathers materials and prepares, and utilizes the mineral waste residue effectively to dissolve, and improves concrete shielding property and endurance quality.
The radiation shield concrete that slag of the present invention gathers materials and prepares, form by the raw material of following weight part:
Water 140～190 weight parts,
Gelatinous material 350～630 weight parts,
Fine aggregate 750～850 weight parts,
Coarse aggregate 1000～1500 weight parts,
Tackifier 0.35～1.9 weight part,
Water reducer 2.1～7.5 weight parts,
Fiber 30～70 weight parts;
Wherein, described gelling material is made up of cement and mineral admixture, and described mineral admixture is made up of silicon ash and flyash, the consisting of of gelatinous material: the flyash of grey and 30～70 weight parts of the silicon of the cement of 300～500 weight parts, 20～60 weight parts; Described coarse aggregate is the high-titanium dry slag coarse aggregate; Described fine aggregate is made up of by mass ratio 1:0.2～3.0 high-titanium dry slag sand and lead powder; Described tackifier are methyl cellulose ether; Described fiber is one or more of polypropylene fibre, steel fiber and plumbous fiber.
High-titanium dry slag gathers materials and has a large amount of pores or three-dimensional space net structure, can adjust and change storing and releasing water function by ambient conditions and the capillary action of self, forms conserving material in the concrete.The aquation stage does not participate in chemical reaction to moisture in the interior conserving material in early days, and when free water in the system is reduced to a certain degree, can discharge moisture, hydration reaction in the maintenance system carries out, promote the inside concrete extent of hydration, the thermal stress cracks that minimizing causes because of the aquation heat, and making gathers materials forms more aquation mineral group such as C-S-H, AFt etc. at the interface, effectively improve the compactness of cement stone interface, the thermal stress resistivity that lifting is gathered materials and produced for the energetic ray radiation guarantees concrete shielding property and endurance quality.
The high-titanium dry slag that the present invention uses gathers materials, its heavy elements titanium content higher (greater than 20%), and the atom of gamma-rays and titanium elements or the impact effect of extranuclear electron and lose most of energy, even energy is absorbed fully.Require than higher position for shielding and resistance to cleavage, concrete has also added plumbous fiber when designing and polymer fiber strengthens, thereby the concrete apparent density after the sclerosis is big, after the heavy metal collision of higher γ photon of energy and inside concrete, energy is decayed rapidly, thereby has effectively stoped the transmission of energetic gamma rays; Secondly, inside concrete also has more chemically-bonded water, comprising: free water, crystal water and be present in water in the hole solution.Wherein, free water is introduced during for concrete mixing, water in crystal water and the hole solution mainly contains C-S-H, AFt etc. in the aquation mineral composition of gelling material, and these moisture have good effect for the slowing down of fast neutron and the absorption of thermal neutron, and can not produce the secondary gamma-rays.Moreover, in concrete design of the present invention, also used a large amount of polymer fibers, H element wherein also has good effect for the shielding of neutron ray.Therefore, the inventive method prepares concrete material and can satisfy shielding neutron ray and this two aspects requirement of gamma-rays simultaneously.
Further, described coarse aggregate is preferably 5～31.5mm continuous grading, and apparent density is preferably 2600～3200kg/m3, and water-intake rate is preferably 2～6%, and the crush values index is preferably 6～15%.
Further, described fine aggregate fineness modulus is preferably 2.5～3.5, and wherein, the apparent density of described high-titanium dry slag sand is preferably 2700～3300kg/m
3, the apparent density of described lead powder is preferably 1800～2500kg/m
3
The apparent density of apparent density that high-titanium dry slag of the present invention gathers materials and gelling material matrix is more approaching, can not produce the sinkage that significantly gathers materials in concrete; And, outside slag surface will form a certain amount of hole in the quenching process because high-titanium dry slag gathers materials, make this part slag density less than the gelling material slurry, formed the interference effect that effectively gathers materials, be that the higher relatively slag of density moves downward to move upward with the relatively low slag of density and produces collision, the aggregate momentum of gathering materials is significantly descended, thereby greatly reduce two kinds of movement rates that gather materials to a certain extent, make concrete degree of layering obtain reduction, prepare the good concrete of homogeneity.The good radiation shield concrete of this homogeneity can effectively reduce crack on concrete tendency and microdefect, and making gathers materials is evenly distributed, weather resistance strengthens, thereby promotes radiation shield concrete each regional shielding properties and working life.
Further, described cement is preferably the cement with shielding property and the mixture of ordinary Portland cement, wherein, has the cement of shielding property and the aglycon amount of the mixing ratio of ordinary Portland cement and is preferably 1:1～5.
Wherein, described cement with shielding property is preferably barium-bearing calcium sulfo-aluminate cement or sulphur strontium aluminate cement.
Further, the used water reducer of the present invention can adopt conventional water reducer, is preferably polycarboxylic acid series high efficiency water reducing agent.
The preparation method of radiation shield concrete of the present invention comprises the steps:
A, gelling material, coarse aggregate, fine aggregate, tackifier and fiber are added according to proportioning, mix thoroughly, obtain mixing material;
B, in the mixing material that a step makes, add water reducer and water, mix thoroughly, promptly.
Slag of the present invention gather materials the preparation radiation shield concrete can reach following performance: apparent density: 2400～5000kg/m
3, the slump: 160～190mm, divergence 400～600mm, grade strength: C30～C50, anti-freezing property 〉=F200,360d coefficient≤2.0 of creeping, 60d chloride diffusion coefficient＜2.5 * 10
-12m
2S
-1, delamination degree: 0.05～0.20, varying strength gamma-rays and neutron ray shielding properties are better than external existing performance index.
The invention solves high-titanium dry slag and be difficult to degradation problem under recycling, the bad shielding properties of bringing of radiation shield concrete homogeneity and the endurance quality.Coagulation serviceability, mechanical property and the endurance quality of the inventive method preparation are good, and shielding properties is better than external existing performance index, can be with this product application in fields such as nuclear power, medical treatment, scientific researches.
Embodiment
The radiation shield concrete that slag of the present invention gathers materials and prepares, form by the raw material of following weight part:
Water 140～190 weight parts,
Gelatinous material 350～630 weight parts,
Fine aggregate 750～850 weight parts,
Coarse aggregate 1000～1500 weight parts,
Tackifier 0.35～1.9 weight part,
Water reducer 2.1～7.5 weight parts,
Fiber 30～70 weight parts;
Wherein, described gelling material is made up of cement and mineral admixture, and described mineral admixture is made up of silicon ash and flyash, the consisting of of gelatinous material: the flyash of grey and 30～70 weight parts of the silicon of the cement of 300～500 weight parts, 20～60 weight parts; Described coarse aggregate is the high-titanium dry slag coarse aggregate; Described fine aggregate is made up of by mass ratio 1:0.2～3.0 high-titanium dry slag sand and lead powder; Described tackifier are methyl cellulose ether; Described fiber is one or more of polypropylene fibre, steel fiber and plumbous fiber.
High-titanium dry slag gathers materials and has a large amount of pores or three-dimensional space net structure, can adjust and change storing and releasing water function by ambient conditions and the capillary action of self, forms conserving material in the concrete.The aquation stage does not participate in chemical reaction to moisture in the interior conserving material in early days, and when free water in the system is reduced to a certain degree, can discharge moisture, hydration reaction in the maintenance system carries out, promote the inside concrete extent of hydration, the thermal stress cracks that minimizing causes because of the aquation heat, and making gathers materials forms more aquation mineral group such as C-S-H, AFt etc. at the interface, effectively improve the compactness of cement stone interface, the thermal stress resistivity that lifting is gathered materials and produced for the energetic ray radiation guarantees concrete shielding property and endurance quality.
The high-titanium dry slag that the present invention uses gathers materials, its heavy elements titanium content higher (greater than 20%), and the atom of gamma-rays and titanium elements or the impact effect of extranuclear electron and lose most of energy, even energy is absorbed fully.Require than higher position for shielding and resistance to cleavage, concrete has also added plumbous fiber when designing and polymer fiber strengthens, thereby the concrete apparent density after the sclerosis is big, after the heavy metal collision of higher γ photon of energy and inside concrete, energy is decayed rapidly, thereby has effectively stoped the transmission of energetic gamma rays; Secondly, inside concrete also has more chemically-bonded water, comprising: free water, crystal water and be present in water in the hole solution.Wherein, free water is introduced during for concrete mixing, water in crystal water and the hole solution mainly contains C-S-H, AFt etc. in the aquation mineral composition of gelling material, and these moisture have good effect for the slowing down of fast neutron and the absorption of thermal neutron, and can not produce the secondary gamma-rays.Moreover, in concrete design of the present invention, also used a large amount of polymer fibers, H element wherein also has good effect for the shielding of neutron ray.Therefore, the inventive method prepares concrete material and can satisfy shielding neutron ray and this two aspects requirement of gamma-rays simultaneously.
Further, described coarse aggregate is preferably 5～31.5mm continuous grading, and apparent density is preferably 2600～3200kg/m3, and water-intake rate is preferably 2～6%, and the crush values index is preferably 6～15%.
Further, described fine aggregate fineness modulus is preferably 2.5～3.5, and wherein, the apparent density of described high-titanium dry slag sand is preferably 2700～3300kg/m
3, the apparent density of described lead powder is preferably 1800～2500kg/m
3
The apparent density of apparent density that high-titanium dry slag of the present invention gathers materials and gelling material matrix is more approaching, can not produce the sinkage that significantly gathers materials in concrete; And, outside slag surface will form a certain amount of hole in the quenching process because high-titanium dry slag gathers materials, make this part slag density less than the gelling material slurry, formed the interference effect that effectively gathers materials, be that the higher relatively slag of density moves downward to move upward with the relatively low slag of density and produces collision, the aggregate momentum of gathering materials is significantly descended, thereby greatly reduce two kinds of movement rates that gather materials to a certain extent, make concrete degree of layering obtain reduction, prepare the good concrete of homogeneity.The good radiation shield concrete of this homogeneity can effectively reduce crack on concrete tendency and microdefect, and making gathers materials is evenly distributed, weather resistance strengthens, thereby promotes radiation shield concrete each regional shielding properties and working life.
Further, described cement is preferably the cement with shielding property and the mixture of ordinary Portland cement, wherein, has the cement of shielding property and the aglycon amount of the mixing ratio of ordinary Portland cement and is preferably 1:1～5.
Wherein, described cement with shielding property is preferably barium-bearing calcium sulfo-aluminate cement or sulphur strontium aluminate cement.
Further, the used water reducer of the present invention can adopt conventional water reducer, is preferably polycarboxylic acid series high efficiency water reducing agent.
The gather materials production method of radiation shield concrete of preparation of slag of the present invention comprises the steps:
A, gelling material, coarse aggregate, fine aggregate, tackifier and fiber are added according to proportioning, mix thoroughly, obtain mixing material;
B, in the mixing material that a step makes, add water reducer and water, mix thoroughly, promptly.
Below in conjunction with embodiment the specific embodiment of the present invention is further described, does not therefore limit the present invention among the described scope of embodiments.
Embodiment 1
Choose raw material according to the proportioning raw materials in the table 1, pour gelling material, coarse aggregate, fine aggregate, tackifier and fiber in concrete mixer dry mixing, add water reducer and water again, continue mix, promptly.Its physicals technical indicator and linear attenuation coefficient are listed in table 5 and table 6.
The gather materials proportioning of each raw material of radiation shield concrete of preparation of table 1 slag
Wherein, cement is barium cement and ordinary Portland cement mixture, ordinary Portland cement and barium cement and mix that to join mass ratio be 5:1; The density of flyash is 0.8g/cm
3～1.1g/cm
3The density of silicon ash is 2.0g/cm
3～2.4g/cm
3, median size is 0.16 μ m～0.19 μ m; Fine aggregate is high-titanium dry slag sand and lead powder, and mixing aglycon amount ratio is 1:3, and the fineness modulus of fine aggregate is 2.5～3.5; Coarse aggregate is the high-titanium dry slag coarse aggregate, the apparent density 2600～3200kg/m of high-titanium dry slag coarse aggregate
3, coarse aggregate is 5～31.5mm continuous grading; Water reducer is a polycarboxylic acid series high efficiency water reducing agent; Tackifier are methyl cellulose ether; Fiber is polypropylene fibre, steel fiber and plumbous fiber,
The aglycon amount of the mixing ratio of polypropylene fibre, steel fiber and plumbous fiber is 1:30:1.
Embodiment 2
Choose raw material according to the proportioning raw materials in the table 2, pour gelling material, coarse aggregate, fine aggregate, tackifier and fiber in concrete mixer dry mixing, add water reducer and water again, continue mix, promptly.Its physicals technical indicator and linear attenuation coefficient are listed in table 5 and table 6.
The gather materials proportioning of each raw material of radiation shield concrete of preparation of table 2 slag
Wherein, cement is barium cement and ordinary Portland cement, and the aglycon amount of the mixing ratio of ordinary Portland cement and barium cement is 3:1; The density of flyash is 0.8g/cm
3～1.1g/cm
3Silicon gray density 2.0g/cm
3～2.4g/cm
3, median size is 0.16 μ m～0.19 μ m, and fine aggregate is high-titanium dry slag sand and lead powder, and it mixes aglycon amount ratio is 1:2, and fineness modulus is 2.5～3.5; Described coarse aggregate is the high-titanium dry slag coarse aggregate, the apparent density 2600～3200kg/m of high-titanium dry slag coarse aggregate
3, coarse aggregate is 5～31.5mm continuous grading; Water reducer is a polycarboxylic acid series high efficiency water reducing agent; Tackifier are methyl cellulose ether; Fiber is polypropylene fibre, steel fiber and plumbous fibre blend, and the aglycon amount of the mixing ratio of polypropylene fibre, steel fiber and plumbous fiber is 1:40:2.
Embodiment 3
Choose raw material according to the proportioning raw materials in the table 3, pour gelling material, coarse aggregate, fine aggregate, tackifier and fiber in concrete mixer dry mixing, add water reducer and water again, continue mix, promptly.Its physicals technical indicator and linear attenuation coefficient are listed in table 5 and table 6.
The gather materials proportioning of each raw material of radiation shield concrete of preparation of table 3 slag
Wherein, cement is barium cement and ordinary Portland cement, and the aglycon amount of the mixing ratio of ordinary Portland cement and barium cement is 2:1; The density of flyash is 0.8g/cm
3～1.1g/cm
3The density of silicon ash is 2.0g/cm
3～2.4g/cm
3, median size is 0.16 μ m～0.19 μ m; Fine aggregate is high-titanium dry slag sand and lead powder, and it mixes aglycon amount ratio is 1:1, and the fineness modulus of fine aggregate is 2.5～3.5; Coarse aggregate is the high-titanium dry slag coarse aggregate, the apparent density 2600～3200kg/m of high-titanium dry slag coarse aggregate
3, coarse aggregate is 5～31.5mm continuous grading; Water reducer is a polycarboxylic acid series high efficiency water reducing agent; Tackifier are methyl cellulose ether.Fiber is polypropylene fibre, steel fiber and plumbous fiber, and the aglycon amount of the mixing ratio of polypropylene fibre, steel fiber and plumbous fiber is 2:50:1.
Embodiment 4
Choose raw material according to the proportioning raw materials in the table 4, pour gelling material, coarse aggregate, fine aggregate, tackifier and fiber in concrete mixer dry mixing, add water reducer and water again, continue mix, promptly.Its physicals technical indicator and linear attenuation coefficient are listed in table 5 and table 6.
The gather materials proportioning of each raw material of radiation shield concrete of preparation of table 4 slag
Wherein, cement is barium cement and ordinary Portland cement, and the aglycon amount of the mixing ratio of ordinary Portland cement and barium cement is 1:1; The density of flyash is 0.8g/cm
3～1.1g/cm
3The density of silicon ash is 2.0g/cm
3～2.4g/cm
3, median size is 0.16 μ m～0.19 μ m; Fine aggregate is high-titanium dry slag sand and lead powder, and mixing aglycon amount ratio is 1:0.2, and fineness modulus is 2.5～3.5; Coarse aggregate is the high-titanium dry slag coarse aggregate, its apparent density 2600～3200kg/m
3, be 5～31.5mm continuous grading; Water reducer is a polycarboxylic acid series high efficiency water reducing agent; Tackifier are methyl cellulose ether; Fiber is polypropylene fibre, steel fiber and plumbous fiber, and the aglycon amount of the mixing ratio of polypropylene fibre, steel fiber and plumbous fiber is 1:60:3.
Table 5 is to measure the concrete delamination degree of the inventive method preparation according to disclosed a kind of light aggregate concrete rheological property of patent No. ZL200720086777.X and homogeneous proofing unit, thereby estimates concrete homogeneity.
Table 5 embodiment 1～4 concrete technology index
The gather materials every physicals of radiation shield concrete of preparation of the explanation of last table, slag of the present invention is good, and the homogeneity height has excellent serviceability.
Table 6 embodiment 1～4 concrete linear attenuation coefficient (cm
-1)
(*: neutron data A.S.MAKARIOUS, I.I.BASHTERZ, A.EL-SAVEDABDOM.SAMIRABDELAZIMandW.A.KANSOUH, Ontheutilizationofheavyconcretefor radiationshielding.Ann.Nucl.EnergyVol.23, No.3,195-206,1996; Gamma-rays data Facultyof Science, ZagazigUniversity, Zagazig, Egypt.calculationofradiationattentioncoefficients forshieldingconcretes.Ann.Nucl.Eherev.Vol.24, No.17,1389-1401.1997).
The gather materials radiation shield concrete shielding properties of preparation of the explanation of last table, slag of the present invention is better than international performance index, has good shielding properties.
Each concrete raw material that the present invention is cited, and the bound of each raw material, interval value can both realize the present invention, do not enumerate embodiment one by one at this.
Claims (7)
- Slag gather materials the preparation radiation shield concrete, it is characterized in that, form by the raw material of following weight part:Water 140～190 weight parts,Gelatinous material 350～630 weight parts,Fine aggregate 750～850 weight parts,Coarse aggregate 1000～1500 weight parts,Tackifier 0.35～1.9 weight part,Water reducer 2.1～7.5 weight parts,Fiber 30～70 weight parts;Wherein, described gelling material is made up of cement and mineral admixture, and described mineral admixture is made up of silicon ash and flyash, the consisting of of gelatinous material: the flyash of grey and 30～70 weight parts of the silicon of the cement of 300～500 weight parts, 20～60 weight parts; Described coarse aggregate is the high-titanium dry slag coarse aggregate; Described fine aggregate is made up of by mass ratio 1:0.2～3.0 high-titanium dry slag sand and lead powder; Described tackifier are methyl cellulose ether; Described fiber is one or more of polypropylene fibre, steel fiber and plumbous fiber.
- According to the described slag of claim 1 gather materials the preparation radiation shield concrete, it is characterized in that: described high-titanium dry slag coarse aggregate is 5～31.5mm continuous grading, apparent density is 2600～3200kg/m 3, water-intake rate is 2～6%, the crush values index is 6～15%.
- 3. according to the gather materials radiation shield concrete of preparation of claim 1 or 2 described slags, it is characterized in that: the fineness modulus of described fine aggregate is 2.5～3.5, and wherein, the apparent density of high-titanium dry slag sand is 2700～3300kg/m 3, the apparent density of lead powder is 1800～2500kg/m 3
- According to each described slag of claim 1～3 gather materials the preparation radiation shield concrete, it is characterized in that: described cement is to have the cement of shielding property and the mixture of ordinary Portland cement, wherein, having mixing of the cement of shielding property and ordinary Portland cement, to join mass ratio be 1:1～5.
- According to the described slag of claim 4 gather materials the preparation radiation shield concrete, it is characterized in that: described cement with shielding property is barium-bearing calcium sulfo-aluminate cement or sulphur strontium aluminate cement.
- According to each described slag of claim 1～5 gather materials the preparation radiation shield concrete, it is characterized in that: described water reducer is a polycarboxylic acid series high efficiency water reducing agent.
- 7. each described slag of claim 1～6 production method of radiation shield concrete of preparation of gathering materials is characterized in that comprising the steps:A, gelling material, coarse aggregate, fine aggregate, tackifier and fiber are added according to proportioning, mix thoroughly, obtain mixing material;B, in the mixing material that a step makes, add water reducer and water, mix thoroughly, promptly.
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| EP3064480A1 (en) | 2015-03-03 | 2016-09-07 | Universiti Malaysia Perlis | Anti-radiation concrete composition and method of its production |
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| EP3064480A1 (en) | 2015-03-03 | 2016-09-07 | Universiti Malaysia Perlis | Anti-radiation concrete composition and method of its production |
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| CN110981325A (en) * | 2019-12-23 | 2020-04-10 | 海宁市嘉海混凝土有限公司 | Radiation-proof high-strength concrete and production process thereof |
| CN111153639A (en) * | 2020-03-01 | 2020-05-15 | 苏州巴涛信息科技有限公司 | Radiation-proof concrete for preventing high-temperature fusion penetration and preparation method thereof |
| CN111847940A (en) * | 2020-08-05 | 2020-10-30 | 中国建筑材料科学研究总院有限公司 | Aggregate with irradiation resistance function and preparation method thereof, irradiation-resistant concrete and preparation method thereof |
| CN111847939A (en) * | 2020-08-05 | 2020-10-30 | 中国建筑材料科学研究总院有限公司 | Aggregate with irradiation resistance function and preparation method and application thereof |
| CN112551951A (en) * | 2020-09-29 | 2021-03-26 | 中国建材国际工程集团有限公司 | Radiation-proof concrete composition, preparation method and prefabricated container |
| CN113735518A (en) * | 2021-09-13 | 2021-12-03 | 安徽建筑大学 | Light duct piece based on high-titanium heavy slag light aggregate concrete and preparation method thereof |
| CN113735518B (en) * | 2021-09-13 | 2022-06-10 | 安徽建筑大学 | Light duct piece based on high-titanium heavy slag light aggregate concrete and preparation method thereof |
| CN113754386A (en) * | 2021-10-26 | 2021-12-07 | 云南中建西部建设有限公司 | Anti-ultraviolet radiation concrete and preparation method thereof |
| CN113929333A (en) * | 2021-10-29 | 2022-01-14 | 攀枝花环业冶金渣开发有限责任公司 | Concrete aggregate containing high-titanium blast furnace slag and preparation method thereof |
| CN115010412A (en) * | 2022-05-25 | 2022-09-06 | 武汉盛大长青建材有限公司 | C40 radiation-proof concrete and preparation method thereof |
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